Author: Robert Hyatt
Date: 14:33:41 12/10/03
Go up one level in this thread
On December 10, 2003 at 17:15:55, K. Burcham wrote: > >I cannot get shredder to play the game move of 37.Rg4 that allows black to play >third move of repitition. >did not know this was a mate in X move. >after making the third move of the repitition, shredder shows eval of 0. >so stefan knew when the third move of the repitition was made, his eval went >from a mte in x to 0. I don't believe so. IE had his engine seen a score of 0.0, it would simply have played a different move that led to mate. This appears to be a bug. I would suspect in the parallel search. Handling draws there is pretty messy if you are not careful. > > >Next move 37.Rg4 allows black to play Kh7 for third move of repetition > [D] 1rr3k1/p4q2/3Q4/8/4p2R/2p5/PPP1B2P/1K6 w - - > >shredder avoids Rg4 and plays 37.Bc4 showing mate in 36 > > Shredder 7.04 > > 14/40 2:24 +16.05++ 37.Bc4 Rxc4 38.Qxb8+ Qf8 39.Rg4+ Kh7 40.Qxf8 cxb2 41.Kxb2 >e3 42.Rxc4 e2 43.Qf5+ Kg8 44.Rc7 e1Q 45.Qc8+ (75.633.523) 525.2 > 14/40 3:33 +M37 37.Bc4 Rxb2+ 38.Kc1 Rb1+ 39.Kxb1 Rb8+ 40.Qxb8+ Kg7 41.Bxf7 >Kf6 42.Rxe4 a5 (114.618.574) 538.1 > 15/19 3:34 +M37 37.Bc4 Rxb2+ 38.Kc1 Rb1+ 39.Kxb1 Rb8+ 40.Qxb8+ Kg7 41.Bxf7 >Kf6 42.Rxe4 a5 (115.112.751) 537.7 > 16/28 3:37 +M37 37.Bc4 Rc6 38.Qxb8+ Kg7 39.Bxf7 Kxf7 40.Qb7+ Rc7 41.Qxc7+ >Kg6 42.Qc6+ Kf7 43.bxc3 Kg7 44.Rxe4 (116.846.667) 536.0 > 17/25 3:55 +M37 37.Bc4 Rc6 38.Qxb8+ Kg7 39.Bxf7 Kxf7 40.Qb7+ Rc7 41.Qxc7+ >Kg6 42.Qc6+ Kf7 43.bxc3 Kg7 44.Rxe4 (125.101.403) 532.2 > 18/28 4:04 +M37 37.Bc4 Rc6 38.Qxb8+ Kg7 39.Bxf7 Kxf7 40.Qb7+ Rc7 41.Qxc7+ >Kg6 42.Qc6+ Kf7 43.bxc3 Kg7 44.Rxe4 (129.696.435) 529.9 > 19/36 4:29 +M36 37.Bc4 Rxb2+ 38.Kc1 Rb1+ 39.Kxb1 Rxc4 40.Qd8+ Qf8 41.Rg4+ >Kf7 42.Rf4+ Ke6 43.Rxf8 Rd4 44.Qxd4 e3 (141.410.179) 525.1 > 20/38 4:53 +M36 37.Bc4 Rxb2+ 38.Kc1 Rb1+ 39.Kxb1 Rxc4 40.Qd8+ Qf8 41.Rg4+ >Kf7 42.Rf4+ Ke6 43.Rxf8 Rd4 44.Qxd4 e3 (152.882.315) 520.2 > 21/44 6:20 +M36 37.Bc4 Rxb2+ 38.Kc1 Rxc4 39.Qd8+ Qf8 40.Rg4+ Kf7 41.Rf4+ >Ke6 42.Rxf8 Rb1+ 43.Kxb1 a6 (193.228.232) 508.4 > 22/45 11:36 +M36 37.Bc4 Rxb2+ 38.Kc1 Rxc4 39.Qd8+ Qf8 40.Rg4+ Kf7 41.Rf4+ >Kg6 42.Qxf8 Rb1+ 43.Kxb1 Rb4+ 44.Qxb4 a5 45.Qxc3 Kg5 46.Rxe4 (346.535.320) 497.2 > 23/47 19:48 +M36 37.Bc4 Rxb2+ 38.Kc1 Rxc4 39.Qd8+ Qf8 40.Rg4+ Kf7 41.Rf4+ >Kg6 42.Qxf8 Rb1+ 43.Kxb1 Rb4+ 44.Qxb4 a5 45.Qxc3 Kg5 46.Rxe4 (583.180.192) 490.5 > > >after playing the game move of 37.Rg4, shredder shows draw score of 0. > [D] 1rr3k1/p4q2/3Q4/8/4p1R1/2p5/PPP1B2P/1K6 b - - > > 15/15 0:00 0.00 37...Kh7 38.Rh4+ (310.477) 441.6 > 16/16 0:01 0.00 37...Kh7 38.Rh4+ (627.214) 441.0 > 17/17 0:02 0.00 37...Kh7 38.Rh4+ (1.271.107) 442.1 > 18/18 0:05 0.00 37...Kh7 38.Rh4+ (2.463.343) 442.8 > 19/19 0:11 0.00 37...Kh7 38.Rh4+ (4.993.538) 445.7 > 20/20 0:22 0.00 37...Kh7 38.Rh4+ (10.106.882) 450.1 > 21/21 0:45 0.00 37...Kh7 38.Rh4+ (20.710.005) 454.2 > 22/22 1:32 0.00 37...Kh7 38.Rh4+ (42.389.116) 456.7 >best move: Kg8-h7 time: 2:13.156 min n/s: 457.496 CPU 99.5% nodes: 60.918.402 > >Ruffian avoids 37.Rg4 and shows mate in 13 > [D] 1rr3k1/p4q2/3Q4/8/4p2R/2p5/PPP1B2P/1K6 w - - > Ruffian 1.0.5 > > 15/40 2:36 +17.65++ 37.Bc4 (259.393.039) 1657.5 > 15/40 2:51 +M14 37.Bc4 Rxb2+ 38.Kc1 Rxc4 39.Qd8+ Qf8 40.Rg4+ Kf7 41.Qd7+ >Qe7 42.Rf4+ Kg6 43.Qxe7 Rb1+ 44.Kxb1 Rb4+ 45.Qxb4 Kg5 46.Qxe4 a5 47.Rg4+ Kf6 >48.Rg6+ Kf7 49.Qe6+ Kf8 50.Rg8+ (284.307.945) 1659.9 > 16/41 5:05 +M13 37.Bc4 Rxb2+ 38.Kc1 Rxc4 39.Qd8+ Qf8 40.Rg4+ Kf7 41.Qd7+ >Qe7 42.Rf4+ Kg6 43.Qxe7 Rb1+ 44.Kxb1 Rb4+ 45.Qxb4 Kg5 46.Qd6 Kh5 47.Rf5+ Kg4 >48.Qg6+ Kh4 49.Rh5+ (514.081.779) 1684.5
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